Answer:
14.8% of H2O2
Explanation:
Based on the redox reaction of H2O2/MnO4- is:
2MnO4- + 5H2O2 + 6H+ ⇄ 2Mn2+ + 5O2 + 8H2O
<em>2 moles of KMnO4 react with 5 moles of H2O2</em>
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To solve this question we need to find the moles of KMnO4 until reach the endpoint. Using the balanced reaction, we can find the moles of H2O2 that must be converted to grams using its molar mass -Molar mass H2O2: 34.015g/mol-:
<em>Moles KMnO4:</em>
0.0297L * (1.4686eq/L) = 0.04362eq MnO4- * (1mol / 5eq) = 0.008723 moles MnO4-
<em>Moles H2O2:</em>
0.008723 moles MnO4- * (5mol H2O2 / 2mol MnO4-) = 0.02181 moles H2O2
<em>Mass H2O2:</em>
0.02181 moles H2O2 * (34.015g/mol) = 0.7418g H2O2
<em>%:</em>
0.7418g H2O2 / 5.0mL * 100
<h3>14.8% of H2O2</h3>
Answer:
15 -phasia means a speech disorder(a)
16 hard(b)
Answer:
The symptoms of a sprain and strain are much alike, due to the fact that the injuries are very similar in nature. You may experience swelling, muscle spasm, difficulty with range of motion, limited flexibility, or pain around the affected joint.
Explanation:
hope this helps u!
Answer:
-Skin
Your skin is a water-proof organ surrounding your whole body protecting it from bacteria and temperature to name a few.
-Ribcage
The ribs are horizontal bones held up between your sternum and vertebral column which protect your heart and lungs.
-Immune system
Your immune system has a set of cells that defend all organs from disease
Answer:
It can cause a wide range of health issues.
Explanation:
Weight gain, trouble sleeping, anxiety, depression, headaches, GI problems like constipation and diarrhea, easy bruising, muscle weakness and increases cholesterol, and blood pressure.
